package com.guigu.eduservice.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.guigu.commonutils.R;
import com.guigu.eduservice.entity.EduTeacher;
import com.guigu.eduservice.entity.vo.TeacherQuery;
import com.guigu.eduservice.service.EduTeacherService;
import com.guigu.servicebase.exceptionhandler.GuliException;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2021-03-04
 */
@RestController
@RequestMapping("/eduservice/teacher")
@Api(description = "讲师管理")
@CrossOrigin
public class EduTeacherController {

    //1,把service注入
    @Autowired
    private EduTeacherService teacherService;
    //1查询讲师表的所有数据
    //rest风格
    @ApiOperation(value = "查询讲师表的所有数据")
    @GetMapping("findAll")
    public R fingAllteacher(){
        //调用service的方法实现查询所有的操作
        List<EduTeacher> list = teacherService.list(null);
        return R.ok().data("items",list);
    }

    //2,讲师逻辑删除
    @ApiOperation(value = "讲师逻辑删除")
    @DeleteMapping("{id}")
    public R removeById(@ApiParam(name="id",value = "讲师ID",required = true)@PathVariable String id){
        boolean flag = teacherService.removeById(id);
        if(flag){
            return R.ok();
        }else {
            return R.error();
        }
    }

    //3,分页查询讲师方法
    //current 当前页
    //limit   每页记录数
    @ApiOperation(value = "分页查询讲师方法")
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit){
//        try{
//            int i=10/0;
//        }catch(Exception e){
//          throw new GuliException(20001,"执行了自定义异常。。。");
//        }


        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
        //调用方法实现分页
        //调用方法时候底层封装，把分页所有数据封装到pageTeacher对象里面
        teacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合
//        Map map = new HashMap();
//        map.put("total",total);
//        map.put("rows",records);
//        return R.ok().data(map);
        return R.ok().data("total",total).data("row",records);
    }

    //4,条件查询带分页模糊查询
    @ApiOperation(value = "条件查询带分页模糊查询")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery){
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        //多条件组合查询
        //mybatis动态sql
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件是否为空，如果不为空拼接条件
        if(!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);
        }
        if(!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }
        if(!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }
        if(!StringUtils.isEmpty(end)){
            wrapper.le("gmt_modified",end);
        }

        //排序
        wrapper.orderByDesc("gmt_create");


        //调用方法实现条件查询分页
        teacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合
        return R.ok().data("total",total).data("rows",records);


    }

    //5、添加讲师接口的方法
    @PostMapping("addTeacher")
    @ApiOperation(value = "新增讲师")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        if(save){
            return R.ok();
        }else{
            return R.error();
        }
    }

    //根据讲师Id查询
    @ApiOperation(value = "根据讲师Id查询")
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher eduTeacher = teacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    //讲师修改功能
    @ApiOperation(value = "讲师修改功能")
    @PostMapping("updataTeacher")
    public R updataTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = teacherService.updateById(eduTeacher);
        if(flag){
            return R.ok();
        }else {
            return R.error();
        }
    }


}

